gonebutnotforgotten:
Where I believe the Tristar does deserve a place in history is that it was probably the first to be operated to a genuinely zero DH. Under FAA rules the minima may be described as 'No DH', but I believe this is a legalisitic way of saying that no DH has been specified - a sight of the ground is still needed before touchdown.
My last airplane at TWA was the L1011, circa 1986-90. I flew a pairing quite often from PHNL to KLAX, which arrived at around 6:00 AM, LA time. During the "fog months" this was the worst hour. I made several CAT III approaches to Runway 24R where we saw nothing until the nose gear settled onto the runway. We were qualified for an AH of 100, and RVR 300, but limited at the time to RVR 600 because of the then-installed transmissometers at the airport.
We never were required to see anything prior to touchdown on the 1011. I flew the 767 for a couple of years before the 1011, with the same authorization, although I never did an actual CAT III in the 767.